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Finding the Fourth Proportional to 268,491.42, 370,174.20 and 219,914.39

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Solution

The fourth proportional to 268,491.42, 370,174.20 and 219,914.39 is: 303,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,491.42 : 370,174.20 = 219,914.39 : x
  2. Step 2: Convert to fraction form
    268,491.42/370,174.20 = 219,914.39/x
  3. Step 3: Cross multiply
    268,491.42x = 370,174.20 × 219,914.39
  4. Step 4: Simplify right side
    268,491.42x = 81,406,631,535.87
  5. Step 5: Solve for x
    x = 81,406,631,535.87/268,491.42
  6. Step 6: Final answer
    x = 303,200.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.